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Class of enzymes From Wikipedia, the free encyclopedia
In enzymology, a 8-hydroxyquercetin 8-O-methyltransferase (EC 2.1.1.88) is an enzyme that catalyzes the chemical reaction
8-hydroxyquercitin 8-O-methyltransferase | |||||||||
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Identifiers | |||||||||
EC no. | 2.1.1.88 | ||||||||
CAS no. | 99775-17-4 | ||||||||
Databases | |||||||||
IntEnz | IntEnz view | ||||||||
BRENDA | BRENDA entry | ||||||||
ExPASy | NiceZyme view | ||||||||
KEGG | KEGG entry | ||||||||
MetaCyc | metabolic pathway | ||||||||
PRIAM | profile | ||||||||
PDB structures | RCSB PDB PDBe PDBsum | ||||||||
Gene Ontology | AmiGO / QuickGO | ||||||||
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Thus, the two substrates of this enzyme are S-adenosyl methionine and 3,5,7,8,3',4'-hexahydroxyflavone (gossypetin), whereas its two products are S-adenosylhomocysteine and 3,5,7,3',4'-pentahydroxy-8-methoxyflavone.
This enzyme belongs to the family of transferases, specifically those transferring one-carbon group methyltransferases. The systematic name of this enzyme class is S-adenosyl-L-methionine:3,5,7,8,3',4'-hexahydroxyflavone 8-O-methyltransferase. Other names in common use include flavonol 8-O-methyltransferase, flavonol 8-methyltransferase, S-adenosyl-L-methionine:3,3',4',5,7,8-hexahydroxyflavone, 8-O-methyltransferase, and 8-hydroxyquercitin 8-O-methyltransferase [mis-spelt].
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